9. shot (n.) a consecutive series of pictures that constitutes a unit of action in a film
The vacuum level is determined by the pressure differential between the evacuated volume and the surrounding atmosphere. Several units of measure can be used. Most refer to the height of a column of mercury â usually inches of mercury (in.-Hg) or millimeters of mercury (mm-Hg).
Vacuum can be classiï¬ed as high, medium or low, where âhigh vacuumâ corresponds to the lowest abso-. lute pressure: low vacuum â 760â100 torr; medium. In a vacuum distillation system, the. condenser is an important determinant. of overall performance. Follow these. guidelines for specifying, selecting and.